Abstract
This study is a basic research to develop a miniature thermoacoustic cooling system. A miniature standing wave thermoacoustic refrigerator was produced experimentally. The device consists mainly of an acrylic tube in which the one end is open and the other end is closed. A stack which is a regenerator was inserted into the tube. A honeycomb ceramic was used as the stack in the refrigerator. The sound wave for input into the tube was generated by a speaker mounted at the open end of the tube. It was confirmed that temperature gradient in the stack was generated and the temperature difference between the hot end and the cold end of the stack was greatly influenced by the operating frequency of sound wave supplied from the open end of the tube. In addition, it was found that the temperature increase at the hot end of the stack was suppressed by the simple heat exchanger manufactured from copper tubes in which water is circulated.
